{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Calcium+Metabolism+Disorders",
    "query": {
      "condition": "Calcium Metabolism Disorders"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 283,
    "total_pages": 29,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Calcium+Metabolism+Disorders&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-07-22T02:16:59.206Z",
  "attribution": "Data derived from public ClinicalTrials.gov records. The official record at https://clinicaltrials.gov/ remains the source of truth for current availability, contacts, and full study details.",
  "notes": [
    "This endpoint exposes only public summary fields — no participant contact emails, phone numbers, or scraped investigator contact details.",
    "For contact information and full protocol detail, follow each trial's `official_url` to the ClinicalTrials.gov record.",
    "This API is a navigational aid. It does not provide medical advice, eligibility determinations, or compensation guarantees."
  ],
  "trials": [
    {
      "nct_id": "NCT00508885",
      "title": "The Effect of Oral Niacinamide on Plasma Phosphorus Levels in Peritoneal Dialysis Patients",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Hyperphosphatemia"
      ],
      "interventions": [
        {
          "name": "Niacinamide",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Washington University School of Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": null,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 17,
      "start_date": "2006-10",
      "completion_date": "2007-07",
      "has_results": false,
      "last_update_posted_date": "2007-07-30",
      "last_synced_at": "2026-07-22T02:16:59.206Z",
      "location_count": 1,
      "location_summary": "St Louis, Missouri",
      "locations": [
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00508885"
    },
    {
      "nct_id": "NCT00540878",
      "title": "A Study to Estimate the Effect of Formulation on the Relative Absorption of SB-751689 Administered to Healthy Women",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Osteoporosis"
      ],
      "interventions": [
        {
          "name": "SB-751689 oral tablets (400 mg)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "GlaxoSmithKline",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": "65 Years",
        "sex": "FEMALE",
        "summary": "40 Years to 65 Years · Female only"
      },
      "enrollment_count": 25,
      "start_date": "2007-04",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2009-05-18",
      "last_synced_at": "2026-07-22T02:16:59.206Z",
      "location_count": 1,
      "location_summary": "Port Orange, Florida",
      "locations": [
        {
          "city": "Port Orange",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00540878"
    },
    {
      "nct_id": "NCT00211978",
      "title": "EPIC(Effect of PhosLo on Phosphorus Levels in Chronic Kidney Disease)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Hyperphosphatemia",
        "Kidney Failure"
      ],
      "interventions": [
        {
          "name": "calcium acetate",
          "type": "DRUG"
        },
        {
          "name": "placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Nabi Biopharmaceuticals",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 110,
      "start_date": "2005-05",
      "completion_date": "2006-10",
      "has_results": false,
      "last_update_posted_date": "2008-01-08",
      "last_synced_at": "2026-07-22T02:16:59.206Z",
      "location_count": 1,
      "location_summary": "San Antonio, Texas",
      "locations": [
        {
          "city": "San Antonio",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00211978"
    },
    {
      "nct_id": "NCT03935984",
      "title": "Calcitonin Pre-treatment to Improve SPECT-CT Sensitivity",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Primary Hyperparathyroidism",
        "Hypercalcemia"
      ],
      "interventions": [
        {
          "name": "Calcitonin",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Joseph Sferra",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 37,
      "start_date": "2019-05-29",
      "completion_date": "2026-12-31",
      "has_results": false,
      "last_update_posted_date": "2024-09-19",
      "last_synced_at": "2026-07-22T02:16:59.206Z",
      "location_count": 1,
      "location_summary": "Toledo, Ohio",
      "locations": [
        {
          "city": "Toledo",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03935984"
    },
    {
      "nct_id": "NCT00169806",
      "title": "Randall's Plaque Study: Pathogenesis and Relationship to Nephrolithiasis",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Nephrocalcinosis",
        "Renal Calculi",
        "Hypercalciuria",
        "Hyperparathyroidism",
        "Cystinuria"
      ],
      "interventions": [
        {
          "name": "videotape for mapping of renal anatomy and papillary biopsy",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Indiana Kidney Stone Institute",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 600,
      "start_date": "1998-11",
      "completion_date": "2025-12",
      "has_results": false,
      "last_update_posted_date": "2025-01-23",
      "last_synced_at": "2026-07-22T02:16:59.206Z",
      "location_count": 1,
      "location_summary": "Indianapolis, Indiana",
      "locations": [
        {
          "city": "Indianapolis",
          "state": "Indiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00169806"
    },
    {
      "nct_id": "NCT00859612",
      "title": "Renal Osteodystrophy: A Fresh Approach",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Renal Osteodystrophy"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Hartmut Malluche, MD",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 464,
      "start_date": "2009-03",
      "completion_date": "2014-02",
      "has_results": false,
      "last_update_posted_date": "2017-05-05",
      "last_synced_at": "2026-07-22T02:16:59.206Z",
      "location_count": 1,
      "location_summary": "Lexington, Kentucky",
      "locations": [
        {
          "city": "Lexington",
          "state": "Kentucky"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00859612"
    },
    {
      "nct_id": "NCT03747523",
      "title": "Pilot Study: The Effect of Ergocalciferol on Plasma Mucin-1 Levels",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "Ergocalciferol"
      ],
      "interventions": [
        {
          "name": "Ergocalciferol",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Wake Forest University Health Sciences",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 44,
      "start_date": "2019-03-12",
      "completion_date": "2020-01-27",
      "has_results": false,
      "last_update_posted_date": "2020-10-29",
      "last_synced_at": "2026-07-22T02:16:59.206Z",
      "location_count": 1,
      "location_summary": "Winston-Salem, North Carolina",
      "locations": [
        {
          "city": "Winston-Salem",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03747523"
    },
    {
      "nct_id": "NCT02233322",
      "title": "Iron Therapy for Autosomal Dominant Hypophosphatemic Rickets: A Pilot Project.",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Autosomal Dominant Hypophosphatemic Rickets"
      ],
      "interventions": [
        {
          "name": "Iron",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Indiana University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "25 Months",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "25 Months and older"
      },
      "enrollment_count": 8,
      "start_date": "2014-08",
      "completion_date": "2019-11-12",
      "has_results": false,
      "last_update_posted_date": "2019-11-14",
      "last_synced_at": "2026-07-22T02:16:59.206Z",
      "location_count": 1,
      "location_summary": "Indianapolis, Indiana",
      "locations": [
        {
          "city": "Indianapolis",
          "state": "Indiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02233322"
    },
    {
      "nct_id": "NCT02438267",
      "title": "Preterm Infants and Nephrocalcinosis",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Prematurity",
        "Nephrocalcinosis",
        "Hypercalciuria"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "University of Utah",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "2 Weeks",
        "sex": "ALL",
        "summary": "Up to 2 Weeks"
      },
      "enrollment_count": 56,
      "start_date": "2015-04",
      "completion_date": "2017-01",
      "has_results": false,
      "last_update_posted_date": "2017-03-13",
      "last_synced_at": "2026-07-22T02:16:59.206Z",
      "location_count": 1,
      "location_summary": "Murray, Utah",
      "locations": [
        {
          "city": "Murray",
          "state": "Utah"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02438267"
    },
    {
      "nct_id": "NCT04983875",
      "title": "Mammography and Breast Arterial Calcification: An Information-Sharing Trial",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Mammography",
        "Vascular Calcification"
      ],
      "interventions": [
        {
          "name": "BAC-Enhanced Letter",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Waitlist Control",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Icahn School of Medicine at Mount Sinai",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "40 Years and older · Female only"
      },
      "enrollment_count": 5492,
      "start_date": "2021-09-29",
      "completion_date": "2027-03-31",
      "has_results": false,
      "last_update_posted_date": "2026-04-16",
      "last_synced_at": "2026-07-22T02:16:59.206Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04983875"
    }
  ]
}